diff --git a/src/fieldCheckers/dayOfMonthChecker.ts b/src/fieldCheckers/dayOfMonthChecker.ts
index 10b1e65..ecc9c10 100644
--- a/src/fieldCheckers/dayOfMonthChecker.ts
+++ b/src/fieldCheckers/dayOfMonthChecker.ts
@@ -1,6 +1,8 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { doc } from 'prettier'
+import { Options } from '../option'
 
 const checkDaysOfMonth = (cronData: CronData, options: Options) => {
   if (!cronData.daysOfMonth) {
diff --git a/src/fieldCheckers/dayOfWeekChecker.ts b/src/fieldCheckers/dayOfWeekChecker.ts
index 3226a21..ecc457c 100644
--- a/src/fieldCheckers/dayOfWeekChecker.ts
+++ b/src/fieldCheckers/dayOfWeekChecker.ts
@@ -1,6 +1,7 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { Options } from '../option'
 
 const checkDaysOfWeek = (cronData: CronData, options: Options) => {
   if (!cronData.daysOfWeek) {
diff --git a/src/fieldCheckers/hourChecker.ts b/src/fieldCheckers/hourChecker.ts
index 426d547..2ead316 100644
--- a/src/fieldCheckers/hourChecker.ts
+++ b/src/fieldCheckers/hourChecker.ts
@@ -1,6 +1,7 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { Options } from '../option'
 
 const checkHours = (cronData: CronData, options: Options) => {
   if (!cronData.hours) {
diff --git a/src/fieldCheckers/minuteChecker.ts b/src/fieldCheckers/minuteChecker.ts
index e9617f5..3c96eb9 100644
--- a/src/fieldCheckers/minuteChecker.ts
+++ b/src/fieldCheckers/minuteChecker.ts
@@ -1,6 +1,7 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { Options } from '../option'
 
 const checkMinutes = (cronData: CronData, options: Options) => {
   if (!cronData.minutes) {
diff --git a/src/fieldCheckers/monthChecker.ts b/src/fieldCheckers/monthChecker.ts
index 69e0895..6e69218 100644
--- a/src/fieldCheckers/monthChecker.ts
+++ b/src/fieldCheckers/monthChecker.ts
@@ -1,6 +1,7 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { Options } from '../option'
 
 const checkMonths = (cronData: CronData, options: Options) => {
   if (!cronData.months) {
diff --git a/src/fieldCheckers/yearChecker.ts b/src/fieldCheckers/yearChecker.ts
index 0f2ef63..387577f 100644
--- a/src/fieldCheckers/yearChecker.ts
+++ b/src/fieldCheckers/yearChecker.ts
@@ -1,6 +1,7 @@
-import { CronData, Options } from '../index'
+import { CronData } from '../index'
 import { err, valid } from '../result'
 import checkField from '../helper'
+import { Options } from '../option'
 
 const checkYears = (cronData: CronData, options: Options) => {
   if (!cronData.years) {
diff --git a/src/index.ts b/src/index.ts
index 1bbfe73..f66cee3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -6,8 +6,7 @@ import checkDaysOfMonth from './fieldCheckers/dayOfMonthChecker'
 import checkMonths from './fieldCheckers/monthChecker'
 import checkDaysOfWeek from './fieldCheckers/dayOfWeekChecker'
 import checkYears from './fieldCheckers/yearChecker'
-import { defaultOptions, InputOptions, validateOptions } from './option'
-import { Options } from '../lib'
+import { defaultOptions, InputOptions, Options, validateOptions } from './option'
 
 export interface CronData {
   seconds?: string